So, with regards to the Settings menu specifically, this is consistent with ST3 behaviour, i.e.
- Go into Settings
- Go into any sub-menu
- Exit Settings by clicking on Playlist or Song button
- Go back into Settings
you will enter at the sub-menu you previously left.
There are times I like this (e.g. when I'm jumping back and forth between main screen and Audio Routing sub-menu changing routing or doing a round of Region creation/editing, in the Song Details it will default to the Region tab if that was the last tab I viewed on another song) and times I don't (e.g. when I want to go into Settings to go into another sub-menu).
Depending on the scenario, it costs or saves a click or two. I honestly can decide which is 'better' in general.
I'm not quite understanding your other example of Playlists, and sorting, etc.